The program prompts the consumer to enter the weight and price of package $1,$ then does the same for package $2,$ and displays the results to indicate which package has a worse unit price of the same material. Later, the program asks consumers which product they would like to order $($package $1$ or $2)$ and how many of it$.$ Depending on the consumer$$s order, the program displays the total cost. It is assumed that the weight of all packages is measured in kg$.$ The program should check to be sure that the inputs of weight, price, and number of packages to order are all positive values. If not, the program ends after telling the consumer that inputs are invalid.